2023年9月21日 · Sand mining has tripled in the past two decades, with demand reaching 50 billion tonnes a year in 2019, according to the United Nations Environment Programme (UNEP). Indeed, the volume of sand and gravel used each year is enough to build a wall around the equator measuring 27 metres high by 27 metres wide.

2024年3月4日 · Global natural resource consumption is forecast to rise 60% by 2060, compared with 2020 levels, according to the United Nations.

2022年9月15日 · Use cases have included self-driving cars, smart lighting, and even smart trash cans. Sensors and data are indeed the building blocks, like cement, air, water, sand, and gravel are for concrete, but they represent raw ingredients, not the ultimate solution.

2018年4月5日 · The wall would be made up of gravel and sand piled up on the sea bed to create an artificial embankment, and would be clad in concrete to stop erosion. This won't help with the problem of warm air reaching the top of the glacier, but sea melting happens much quicker and less predictably.

2025年1月13日 · The Global Cybersecurity Outlook 2025 highlights key trends shaping economies and societies in 2025, along with insights into emerging threats and solutions.

2022年7月21日 · To compound these concerns about the risks of deep-sea mining, a recent study has revealed just how little experts know about the parts of the planet already leased for mining exploration and how they might be affected by mining activities.

2024年11月22日 · The market for green bonds – money invested in sustainable projects – is growing exponentially. In 2020, $270 billion was spent on green bond issuances, according to the World Economic Forum's report, Fostering Effective Energy Transition 2023.

2021年10月12日 · Dead fish and birds washed up on the sand, with the local mayor calling the slick an “environmental catastrophe”. A harbor seal pup rescued at Refugio Beach oil spill. (June 2015 - Refugio Beach, California) Image: USFWS

2023年10月6日 · The Sand Dollar came about shortly after the Bahamas suffered its worst ever natural disaster, Hurricane Dorian. Digital currencies were seen as a way for the government to send immediate financial aid to citizens after such events, when bank branches or cash machines may have been damaged or become inaccessible.

2024年12月11日 · The issue of generative AI use by students was also raised by Russell, who gave an example of how to navigate this challenge to best prepare students for the working world: "One of my colleagues at Berkeley has a rule that says, okay, you have to use ChatGPT or some equivalent engine to write your essay, but if you turn that in, you get zero.